Final answer:
Health care professionals who are nonpharmacists and are legally allowed to access medications after hours should utilize log sheets to record medication usage and an independent second check before administration to ensure quality control.
Step-by-step explanation:
When nonpharmacist health care professionals are permitted by law or regulation to obtain medications after the pharmacy is closed, it is critical to maintain quality control procedures to ensure patient safety. An effective quality control measure is that the individual removing the medication from floor stock must record the medication on a log sheet. This is an important step because it ensures traceability and accountability of the medication use, which can be reviewed by a pharmacist later. Additionally, an independent second check by another individual before administration helps to prevent errors and ensures proper use of the medication.